FR2223728A1 - - Google Patents

Info

Publication number
FR2223728A1
FR2223728A1 FR7411627A FR7411627A FR2223728A1 FR 2223728 A1 FR2223728 A1 FR 2223728A1 FR 7411627 A FR7411627 A FR 7411627A FR 7411627 A FR7411627 A FR 7411627A FR 2223728 A1 FR2223728 A1 FR 2223728A1
Authority
FR
France
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
FR7411627A
Other versions
FR2223728B1 (fr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Eastman Kodak Co
Original Assignee
Eastman Kodak Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Eastman Kodak Co filed Critical Eastman Kodak Co
Publication of FR2223728A1 publication Critical patent/FR2223728A1/fr
Application granted granted Critical
Publication of FR2223728B1 publication Critical patent/FR2223728B1/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00—Photosensitive materials
    • G03C1/005—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
    • G03C1/485—Direct positive emulsions
    • G03C1/48538—Direct positive emulsions non-prefogged, i.e. fogged after imagewise exposure
    • G03C1/48546—Direct positive emulsions non-prefogged, i.e. fogged after imagewise exposure characterised by the nucleating/fogging agent

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Plural Heterocyclic Compounds (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
FR7411627A 1973-04-02 1974-04-02 Expired FR2223728B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00347291A US3850638A (en) 1973-04-02 1973-04-02 Benzimidazole nucleating agents

Publications (2)

Publication Number Publication Date
FR2223728A1 true FR2223728A1 (fr) 1974-10-25
FR2223728B1 FR2223728B1 (fr) 1976-06-25

Family

ID=23363117

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7411627A Expired FR2223728B1 (fr) 1973-04-02 1974-04-02

Country Status (3)

Country Link
US (1) US3850638A (fr)
FR (1) FR2223728B1 (fr)
GB (1) GB1448936A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2491638A1 (fr) * 1980-10-02 1982-04-09 Kodak Pathe Emulsion photographique positive-directe aux halogenures d'argent avec agent de nucleation incorpore

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS583535B2 (ja) * 1976-11-25 1983-01-21 コニカ株式会社 直接ポジ画像の形成方法
US4131467A (en) * 1977-11-23 1978-12-26 E. I. Du Pont De Nemours And Company 4,7-Dihydroxybenzimidazole hydrobromide as antifogger
US4306017A (en) * 1980-11-17 1981-12-15 Eastman Kodak Company Photographic emulsions and elements capable of forming direct-positive images
JPS5862652A (ja) * 1981-10-08 1983-04-14 Konishiroku Photo Ind Co Ltd 直接ポジカラ−画像の形成方法
US4431423A (en) * 1982-03-10 1984-02-14 E. I. Du Pont De Nemours & Co. Cell washing apparatus having radially inwardly directed retaining arms
JPS5950439A (ja) * 1982-09-16 1984-03-23 Fuji Photo Film Co Ltd ハロゲン化銀写真感光材料

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2497917A (en) * 1947-10-17 1950-02-21 Eastman Kodak Co Method of producing direct positive photographs having increased density
US3734738A (en) * 1970-10-30 1973-05-22 Eastman Kodak Co Silver halide emulsions containing reactive quaternary salts nucleating agents

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2491638A1 (fr) * 1980-10-02 1982-04-09 Kodak Pathe Emulsion photographique positive-directe aux halogenures d'argent avec agent de nucleation incorpore

Also Published As

Publication number Publication date
US3850638A (en) 1974-11-26
GB1448936A (en) 1976-09-08
FR2223728B1 (fr) 1976-06-25

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Legal Events

Date Code Title Description
ST Notification of lapse